42402513331 has 4 divisors (see below), whose sum is σ = 42983369752. Its totient is φ = 41821656912.

The previous prime is 42402513319. The next prime is 42402513343. The reversal of 42402513331 is 13331520424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (42402513319) and next prime (42402513343).

It is a cyclic number.

It is not a de Polignac number, because 42402513331 - 2⁷ = 42402513203 is a prime.

It is a super-2 number, since 2×42402513331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42402513331.

It is not an unprimeable number, because it can be changed into a prime (42402513931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290428101 + ... + 290428246.

It is an arithmetic number, because the mean of its divisors is an integer number (10745842438).

Almost surely, 2^42402513331 is an apocalyptic number.

42402513331 is a deficient number, since it is larger than the sum of its proper divisors (580856421).

42402513331 is an equidigital number, since it uses as much as digits as its factorization.

42402513331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580856420.

The product of its (nonzero) digits is 8640, while the sum is 28.

The spelling of 42402513331 in words is "forty-two billion, four hundred two million, five hundred thirteen thousand, three hundred thirty-one".